Mass per volume density.
Grains per Pint to Pounds per Quart Converter — gr/pt to lb/qt
Convert Grain per Pint (gr/pt) to Pound per Quart (lb/qt) using the exact conversion factor (1 grain per pint = 0.0002857143 pound per quart). See the formula, worked examples, and conversion table.
Grains per Pint to Pounds per Quart converter
Converter
Density Converter
Convert thousands of mass-per-volume density combinations for science, engineering, agriculture, and fluids.
Context values
Some unit families need one extra value for a physically accurate result.
Mass per volume density.
Result = input x 0.1369444884 / 479.3057093.
Density uses kilograms per cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Grains per Pint to Pounds per Quart
Grain per Pint and Pound per Quart both measure density — mass per unit volume — a property used to identify materials, check manufacturing quality, and predict whether something floats or sinks. As a fixed reference point, water has a density of exactly 1000 kg/m³ (1 g/cm³, 1 g/mL) at its temperature of maximum density, which is why many density figures in science and engineering are quoted relative to water. Both are mass per volume density units.
Formula
pounds per quart = grains per pint × 0.000285714285714
This factor comes from each unit's defined relationship to the category's base unit: 1 grain per pint equals 0.136944488362 base units, and 1 pound per quart equals 479.305709268 base units, so dividing one by the other gives the direct grain per pint-to-pound per quart factor of 0.000285714285714.
Simple example
1 gr/pt × 0.0002857142857 = 0.0002857143 lb/qt
1 grain per pint = 0.0002857143 pounds per quart.
Real-world example
1,000 gr/pt × 0.0002857142857 = 0.2857142857 lb/qt
1,000 grains per pint = 0.2857142857 pounds per quart.
Conversion table
| Grain per Pint (gr/pt) | Pound per Quart (lb/qt) |
|---|---|
| 0.1 gr/pt | 0.0000285714 lb/qt |
| 1 gr/pt | 0.0002857143 lb/qt |
| 10 gr/pt | 0.0028571429 lb/qt |
| 100 gr/pt | 0.0285714286 lb/qt |
| 1,000 gr/pt | 0.2857142857 lb/qt |
| 10,000 gr/pt | 2.857142857 lb/qt |
Reverse conversion: Pound per Quart to Grain per Pint
0.0002857143 lb/qt × 3500 = 1.00000005 gr/pt
0.0002857143 pounds per quart = 1.00000005 grains per pint.
grains per pint = pounds per quart × 3500
For a page dedicated to this direction, see Pound per Quart to Grain per Pint.
Understanding the Grain per Pint (gr/pt)
Mass per volume density.
Understanding the Pound per Quart (lb/qt)
Mass per volume density.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many pounds per quart are in 1 grain per pint?
1 grain per pint equals 0.0002857143 pounds per quart, using the exact defined conversion factor rather than an estimate.
How do I convert grain per pint to pound per quart?
Multiply the grain per pint value by 0.0002857142857. The converter above does this instantly to whatever precision you set.
How do I convert pound per quart back to grain per pint?
Use the reverse factor: 1 pound per quart equals 3,500 grains per pint. You can also use the swap control in the converter above to flip the direction instantly.
What is a grain per pint?
Grain per Pint (gr/pt) is a unit of density.
What is a pound per quart?
Pound per Quart (lb/qt) is a unit of density.
Is the grain per pint to pound per quart conversion exact?
Yes. Both grain per pint and pound per quart are defined by fixed standards rather than physical artifacts, so the factor of 0.0002857142857 used above is exact to as many digits as you choose to display.
What's the difference between density and mass concentration?
Density is the mass of a pure substance or material per unit volume. Mass concentration is the mass of one component — like a dissolved solute — within a mixture's total volume. The two use the same kind of units but describe different physical situations.